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id, title, category, status, verification_status, canonical_id, aliases, duplicate_of, source_trust_level, confidence_score, created_at, updated_at, review_reason, merge_history, tags, raw_sources, applied_in, github_commit
id title category status verification_status canonical_id aliases duplicate_of source_trust_level confidence_score created_at updated_at review_reason merge_history tags raw_sources applied_in github_commit
cpp-variables-identifiers C++ Identifiers Programming_Language draft conceptual
variable naming rules
C++ 식별자
B 0.83 2026-07-04 2026-07-04
cpp
programming-language
w3schools
variables
naming
https://www.w3schools.com/cpp/cpp_variables_identifiers.asp

CPP Identifiers

🎯 한 줄 통찰 (One-line insight)

The naming rules here are IDENTICAL to C's variable-naming chapter word-for-word (letters/digits/underscores, must start with letter or underscore, case-sensitive, no reserved words) — confirming that C++'s identifier grammar is inherited directly from C rather than redesigned, which is exactly what the Intro chapter's "almost the same syntax" claim predicted in concrete terms. [S1]

🧠 핵심 개념 (Core concepts)

  • Identifier — the unique name given to a variable. [S1]
  • Naming rules — letters, digits, underscores allowed; must start with a letter or underscore; case-sensitive (myVarmyvar); no whitespace/special characters; reserved keywords (like int) cannot be used as names. [S1]
  • Descriptive naming recommendedminutesPerHour over m, for readability, even though both compile. [S1]

📖 세부 내용 (Details)

  • Descriptive vs terse naming: int minutesPerHour = 60; // Good versus int m = 60; // OK, but unclear. [S1]

⚖️ 모순 및 업데이트 (Contradictions & updates)

  • 현재까지 발견된 모순 사항 없음 (No contradictions found in available sources). C 챕터와 규칙이 동일함이 확인됨.

🛠️ 적용 사례 (Applied in summary)

현재 발견된 실제 적용 사례가 없습니다 — C에서 배운 식별자 규칙이 C++로 그대로 이어진다는 점이 언어 전환 학습자에게 유리한 지점이다. [S1]

💻 코드 패턴 (Code patterns)

Descriptive vs. terse variable naming (C++):

// Good
int minutesPerHour = 60;
// OK, but not so easy to understand what m actually is
int m = 60;

검증 상태 및 신뢰도

  • 상태: draft
  • 검증 단계: conceptual
  • 출처 신뢰도: B (W3Schools — widely used educational reference, not a primary standards body)
  • 신뢰 점수: 0.83
  • 중복 검사 결과: 신규 생성 (New discovery)

🔗 지식 그래프 (Knowledge Graph)

📚 출처 (Sources)

📝 변경 이력 (Change history)

  • 2026-07-04: Initial draft synthesized from the W3Schools "C++ Identifiers" page (Astra wiki-curation, P-Reinforce v3.1 format).